参数资料
| 型号： | X40239S16I-BT1 |
| 厂商： | Intersil |
| 文件页数： | 22/36页 |
| 文件大小： | 0K |
| 描述： | IC VOLTAGE MON TRPL EE 16-SOIC |
| 标准包装： | 1,000 |
| 类型： | 多压监控器 |
| 监视电压数目： | 3 |
| 输出： | 开路漏极，开路漏极 |
| 复位： | 高有效/低有效 |
| 复位超时： | 可调节/可选择 |
| 电压 - 阀值： | 1.75V，2.95V，4.45V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
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X40231, X40233, X40235, X40237, X40239
V2MON Monitoring
The X4023x asserts the V2FAIL output HIGH if the
voltage V2MON exceeds the corresponding V TRIP2
threshold (See Figure 21). The bit V2FS in the CR reg-
ister is then set to a “0” (assuming that it has been set
to “1” after system initialization).
The V2FAIL output may remain active HIGH with V CC
down to 1V. (See Figure 21)
Vx
VxFAIL
V CC
V TRIPx
0V
0V
V TRIP1
V3MON Monitoring
The X4023x asserts the V3FAIL output HIGH if the
voltage V3MON exceeds the corresponding V TRIP3
threshold (See Figure 21). The bit V3FS in the CR reg-
ister is then set to a “0” (assuming that it has been set
to “1” after system initialization).
The V3FAIL output may remain active HIGH with V CC
down to 1V. V TRIPx Thresholds (x = 1,2,3)
The X4023x is shipped with pre-programmed thresh-
old (V TRIPx ) voltages. In applications where the
required thresholds are different from the default val-
ues, or if a higher precision / tolerance is required, the
X4023x trip points may be adjusted by the user, using
the steps detailed below.
0 Volts
(x = 2,3)
Figure 21. Voltage Monitor Response
Setting a V TRIPx Voltage (x = 1,2,3)
There are two procedures used to set the threshold
voltages (V TRIPx ), depending if the threshold voltage to
be stored is higher or lower than the present value. For
example, if the present V TRIPx is 2.9 V and the new
V TRIPx is 3.2 V, the new voltage can be stored directly
into the V TRIPx cell. If however, the new setting is to be
lower than the present setting, then it is necessary to
“reset” the V TRIPx voltage before setting the new value.
V CC
V2MON,
V3MON
WP
V TRIPx
V P
SCL
SDA
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
0 1 2 3 4 5 6 7
00h
S
T
A
R
A0h
?
01h ? sets V TRIP1
09h ? sets V TRIP2
0Dh ? sets V TRIP3
Data Byte ?
? All
others Reserved.
T
22
Figure 22. Setting V TRIPx to a higher level (x = 1,2,3).
FN8115.0
April 11, 2005
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